I'll throw my hat in the ring on the stalkarounds. Here is one that I made a couple
of years ago that has a $4 camera swivel mount and a two-bar attachment for the head.
I have both turning and nodding action. The linkages aren't hard , it's just finding the right
length for the right range of movement.
It's roughly 8-feet tall
and a video to show the movement:
for more looks at the build got to this link:
crawfordforester/Stalkaround - Photobucket - Video and Image Hosting
any questions just PM or emial me. happy to help.
Indeva's looks to be quite a bit more ruggedly built. That's a bruiser! How heavy?